Finding the Fourth Proportional to 84,465,506.48, 126,746,188.51 and 45,603,440.96
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Solution
The fourth proportional to 84,465,506.48, 126,746,188.51 and 45,603,440.96 is: 68,431,038.49
Step by Step Solution
- Step 1: Write the proportion equation
84,465,506.48 : 126,746,188.51 = 45,603,440.96 : x - Step 2: Convert to fraction form
84,465,506.48/126,746,188.51 = 45,603,440.96/x - Step 3: Cross multiply
84,465,506.48x = 126,746,188.51 × 45,603,440.96 - Step 4: Simplify right side
84,465,506.48x = 5,780,062,324,823,672 - Step 5: Solve for x
x = 5,780,062,324,823,672/84,465,506.48 - Step 6: Final answer
x = 68,431,038.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.